login

<?php

//Connects to your Database
$conect = mysqli_connect("localhost:3307","root","usbw", "auth") or die(mysql_error());

//Checks if there is a login cookie
if(isset($_COOKIE['ID_your_site'])){ //if there is, it logs you in and directes you to the members page
 	$username = $_COOKIE['ID_your_site'];
 	$pass = $_COOKIE['Key_your_site'];
 	$check = mysqli_query($conect, "SELECT * FROM users WHERE username = '$username'")or die(mysql_error());

 	while($info = mysqli_fetch_array( $check )){
 		if ($pass != $info['password']){}
 		else{
 			header("Location: login.php");
		}
 	}
 }

 //if the login form is submitted
 if (isset($_POST['submit'])) {

	// makes sure they filled it in
 	if(!$_POST['username']){
 		die('You did not fill in a username.');
 	}
 	if(!$_POST['pass']){
 		die('You did not fill in a password.');
 	}

 	// checks it against the database
 	if (!get_magic_quotes_gpc()){
 		$_POST['email'] = addslashes($_POST['email']);
 	}

 	$check = mysqli_query($conect, "SELECT * FROM users WHERE username = '".$_POST['username']."'")or die(mysql_error());

 //Gives error if user dosen't exist
 $check2 = mysqli_num_rows($check);
 if ($check2 == 0){
	die('That user does not exist in our database.<br /><br />If you think this is wrong <a href="login.php">try again</a>.');
}

while($info = mysqli_fetch_array( $check )){
	$_POST['pass'] = stripslashes($_POST['pass']);
 	$info['password'] = stripslashes($info['password']);
 	$_POST['pass'] = md5($_POST['pass']);

	//gives error if the password is wrong
 	if ($_POST['pass'] != $info['password']){
 		die('Incorrect password, please <a href="login.php">try again</a>.');
 	}

	else{ // if login is ok then we add a cookie
		$_POST['username'] = stripslashes($_POST['username']);
		$hour = time() + 3600;
		setcookie(ID_your_site, $_POST['username'], $hour);
		setcookie(Key_your_site, $_POST['pass'], $hour);

		//then redirect them to the members area
		header("Location: members.php");
	}
}
}
else{
// if they are not logged in
?>

 <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">

 <table border="0">

 <tr><td colspan=2><h1>Login</h1></td></tr>

 <tr><td>Username:</td><td>

 <input type="text" name="username" maxlength="40">

 </td></tr>

 <tr><td>Password:</td><td>

 <input type="password" name="pass" maxlength="50">

 </td></tr>

 <tr><td colspan="2" align="right">

 <input type="submit" name="submit" value="Login">

 </td></tr>

 </table>

 </form>

 <?php
 }
 ?>